| Date: | 2023-10-08 |
| Time: | 1446 |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | 15m |
| Standardized Duration: | 15m |
| Time Entered: | 2023-10-08 18:03:48 |
| Time Updated: | 2023-10-18 12:45:24 |
| Time Uploaded: | 2023-10-18 12:45:25 |
| Entrant: | Ben VL |
| Observer: | Ben VL, Dan A, Neville, Bill, Ranger Jim, Adam, Colleen, Murali & Winnie V, and some other nice visitors who we were chatting with at the time |
| Submitted to: | GeyserTimes for iOS |
| Comments: | 341'. GORGEOUS warm blue sky conditions with low wind just south of the parking lot. Could see both columns top to bottom (both also nicely lit) from the main deck for the entire duration. Incredibly loud! Especially from about 3m to 13m in. Probably the loudest or second loudest I have seen - it's close. Pressure waves and ground shakes from the main deck were intense. NV mixed water/steam early on. Looked like it was about to switch to steam at about 5m, but then it began getting some water back. Looked like it was on it's way to start bursting but did not make it all the way. Some dirty water and rocks from NV during this time but otherwise clean. The wind was close enough to the right spot to keep it in water for an extra 8-10m. Washboarding on the trail past steerage but no rocks on the bridge. No return of water and no restarts. Fairly quiet in the morning. Was beginning to think yesterday's events had killed it for a bit. One Conc. Sust. W/ vertical & BB @ 0938. Not much else until after noon. 1236-1243 series of 5 back to back CSV's with BB runoff or better on each. 1359 isolated strong minor, better than an hour ago. 1436 suddenly opened with huge minors leading into the eruption. 1436, then 1440, 1441, 1443, 1443, 1443 (yes three huge minors in the same minute), 1444, & 1445. All of them very heavy, tall, concerted, sustained vertical. NV above the trees for many of them, the last couple in the 60' to 70' range. A lot of HUGE SV's, and long sustained ones which we had not gotten earlier in the day either. A couple of the sustained verticals were so strong it looked like SV was already starting to climb for several seconds at a time, and were angled very sharply to the left (arcing all the way over into NV). The noise even got slightly raspy for those. I have never seen SV do this. NV launched several rocks on the minor that started the eruption. Likely more details coming... |
| nryant | Time Entered:2023-10-08 21:09:12 Time Uploaded:2023-10-08 21:09:12 Submitted to:GeyserTimes for iOS |
| bbev | Time Entered:2023-10-08 21:28:39 Time Uploaded:2023-10-08 21:28:39 Submitted to:GeyserTimes for Android |
| Dan A | Time Entered:2023-10-08 21:31:00 Time Uploaded:2023-10-08 21:31:00 Submitted to:Geysertimes.org |
| am | Time Entered:2023-10-09 07:39:20 Time Uploaded:2023-10-09 07:39:20 Submitted to:GeyserTimes for iOS |
| https://www.flickr.com/photos/jsjgeology/53246168970 | Norris Junction seismogram showing Steamboat Geyser's 2:46 PM major eruption on 8 October 2023. | Entrant: JSJ Time Entered:2023-10-09 07:48:56 Time Uploaded:2023-10-09 07:48:56 Submitted to:Geysertimes.org |
| https://www.flickr.com/photos/jsjgeology/53245966898 | Tantalus Creek discharge graph showing Steamboat Geyer's 2:46 PM major eruption on 8 October 2023. | Entrant: JSJ Time Entered:2023-10-09 07:49:51 Time Uploaded:2023-10-09 07:49:51 Submitted to:Geysertimes.org |